Added SSL to production.rb
Added sessions controller to control signin and signout. Modified routes to point to the signin page
Flash alert when signin information is invalid
Added remember_token to the User db
Created a remember token to be stored as a cookie
Modified the header to show a drop down depending if the user is signed in or not. Save a permanent cookie so that the session is remembered
Made it so that the users signs in right after sign up
Added the necessary changes to do a succesful sign out